eslint.config.mjs

import typescriptEslint from "@typescript-eslint/eslint-plugin";
import tsParser from "@typescript-eslint/parser";
import path from "node:path";
import { fileURLToPath } from "node:url";
import js from "@eslint/js";
import { FlatCompat } from "@eslint/eslintrc";

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);
const compat = new FlatCompat({
    baseDirectory: __dirname,
    recommendedConfig: js.configs.recommended,
    allConfig: js.configs.all
});

export default [...compat.extends(
    "eslint:recommended",
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
), {
    plugins: {
        "@typescript-eslint": typescriptEslint,
    },

    languageOptions: {
        parser: tsParser,
    },

    rules: {
        indent: ["error", 2],
        "no-var": "error",
        "no-constant-condition": "error",
        "no-trailing-spaces": "error",
        "no-multiple-empty-lines": "error",
        "space-before-blocks": "error",
        "arrow-spacing": "error",
        "space-before-function-paren": ["error", "never"],
        "space-in-parens": ["error", "never"],
        "space-infix-ops": "error",
        "space-unary-ops": "error",
        "@typescript-eslint/explicit-function-return-type": "off",
    },
}];